using System;

namespace Org.BouncyCastle.Bcpg
{
	public class Crc24
	{
		private const int Crc24Init = 0x0b704ce;
		private const int Crc24Poly = 0x1864cfb;

		private int crc = Crc24Init;

		public Crc24()
		{
		}

		public void Update(
			int b)
		{
			crc ^= b << 16;
			for (int i = 0; i < 8; i++)
			{
				crc <<= 1;
				if ((crc & 0x1000000) != 0)
				{
					crc ^= Crc24Poly;
				}
			}
		}

		[Obsolete("Use 'Value' property instead")]
		public int GetValue()
		{
			return crc;
		}

		public int Value
		{
			get { return crc; }
		}

		public void Reset()
		{
			crc = Crc24Init;
		}
	}
}
